A motherboard form factor which allows for smaller cases used in some desktop model PCs. The distinguishing characteristic of LPX is that expansion boards are inserted into a riser that contains several slots and are therefore parallel, rather than perpendicular, to the motherboard.
A form factor in which expansion cards are mounted on a riser card that plugs into a motherboard. The expansion cards in LPX systems are mounted parallel to the motherboard, rather than perpendicular to it as in AT and ATX systems.
A motherboard form factor specification that has now been replaced by the NLX specification. LPX is similar to the AT form factor, but expansion boards...